> -----Original Message-----
> From: Rickard �berg [mailto:[EMAIL PROTECTED]]
> Sent: Dienstag, 23. November 1999 09:55
> To: [EMAIL PROTECTED]
> Subject: Re: The Future of EJB
>
>
> Hey
>
> Peter Michael wrote:
> > > Async calls are cool, but do they really belong in the EJB
> > > spec? Many async
> >
> > Where else? In my opinion, if it is a framework thing, it
> > belongs into the spec.
>
> But is it something that affects the contract between the bean and the
> container? IMHO no, since it can be added "on top" of JMS (or whatever
> you fancy as underlying protocol).
I beg to differ. I think you would have to introduce a couple of new
classes.
Take a look at the proposal of Andrzej Jan Taramina, which you can find at
http://www.chaeron.com/software/EJBAsync12.zip
>
> > > features can be implemented with a client-side library on top
> > > of RMI, which
> > > would work for distributed Java objects in general, instead
> > > of just EJB. Of
> >
> > One major issue for us is that which simulated async EJB calls,
> > you cannot get multiple replies.
>
> Why not? If the call to the bean has a callback, the EJB can call it
> several times if it wants to.
What is the syntax and semantic of a callback? How do you tell an ejb where
to deliver it callbacks? You would have to specify that!
>
> > > course, there is some benefit to standardizing the "poll" and
> > > "callback"
> > > interfaces of a generic async library, but this could be done
> > > as a separate
> > > spec which leverages RMI.
> >
> > Yes, general async RMI would really be nice.
>
> Yes, but since it doesn't affect the interface between the
> container and
> the bean/client why add it to the EJB spec?
Again, look at the proposal I mentioned above.
Bye,
Michael
>
> /Rickard
>
> --
> Rickard �berg
>
> @home: +46 13 177937
> Email: [EMAIL PROTECTED]
> Homepage: http://www-und.ida.liu.se/~ricob684
>
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